Approved Purpose And Foreseeable Improper Operation; Proper Use - Leuze electronic S20 Original Operating Instructions

Safety
2.1

Approved purpose and foreseeable improper operation

2.1.1

Proper use

• The Safety Switch must only be used after it has been selected in accor-
dance with the respectively applicable instructions and relevant standards,
rules and regulations regarding labor protection and safety at work, and
after it has been installed on the machine, connected, commissioned, and
checked by a competent person.
• When selecting the Safety Switch it must be ensured that its safety-related
capability meets or exceeds the required performance level PL
in the risk assessment.
• It must be in perfect condition and inspected regularly.
• The switching process must only be triggered by an actuator approved for
this Safety Switch that is connected to the moveable guard in a non-detach-
able and tamperproof manner.
WARNING
A running machine can cause severe injuries!
Make certain that, during all conversions, maintenance work and inspections,
the system is securely shut down and protected against being restarted
again.
S20 Safety Switches must be connected in such a way that a dangerous state can
only be activated while the protective device is closed and so that the dangerous
state stops upon opening of the protective device. It must not be used if the point
of operation can be accessed during the lag time before the dangerous state has
ended.
Connection conditions:
• the dangerous state can only be activated while the protective device is
closed
• opening the protective device while the machine is running triggers a stop
command and ends the dangerous state
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